Have you ever heard that excuse? Have you ever used that excuse yourself?
Like all unsafe shortcuts, others may look the other way or even applaud your resourcefulness if the job goes well. However, as soon as your resourcefulness turns to disaster, all fingers point toward you.
A forklift is a lever where the counterweight must be greater than the load when the load’s center of gravity (CG) is at the “Load Center on the Forks.” Load center is measured from the fork-face 24, 36, 48 inches, etc. toward the fork tips. Forklift loads must be within the rated capacity and their CG must be over the load center.
Material handling equipment has safeguards built in their design. Just because equipment, like the forklifts in the video, have always been used improperly, it doesn’t rule out the possibility of an accident. One day conditions may change, causing a problem with this seemingly, well-orchestrated job, and a fatal accident can occur. The larger forklift could tip forward because the CG of the smaller forklift plus the weight of the box are beyond its load center. Also, the weight of the smaller forklift may be imposed on its steering mechanism which could damage it.
An average of 40 thousand serious forklift injuries and fatalities occur each year. Don’t be convinced to use a forklift improperly due to the right equipment being unavailable, deadlines needing to be met, or using the excuse that its always been done that way. To be convinced of anything short of properly using a forklift, is to sacrifice the safety of everyone on the job.
Crane Institute of America can teach you how to properly...
August 5, 2014 (Sanford, Fla.)—Crane Institute of America announces the availability of the newest edition of the industry’s favorite rigging handbook. Rigging, by James Headley, has been converted from imperial to metric. Providing practical information and great illustrations, the Rigging Metric handbook contains the latest information on wire rope, rigging hardware, and slings, including capacity tables and charts.
“For years, the handbook Rigging has been popular outside the United States for use in training,” said Jim Headley, President of Crane Institute of America. “Customers in Canada, South America, Europe, Australia, and the Middle East have been asking for a metric version of the book.”
Along with the rated capacity tables of slings and rigging hardware, the book covers how to calculate load weight, how to calculate sling loading, and proper load handling techniques. The information is applicable to rigging operations no matter where you are in the world. By offering two versions of the books, trainers and students now have a resource that improves communication, understanding, and safety.
The book can be ordered at Crane Institute’s Online Store and costs $19.95 USD.
About the Author
James Headley has spent more than 40 years working in the crane and rigging industry. After serving a crane apprenticeship through Operating Engineers Local 312 in Birmingham, Ala., he worked as journeyman crane operator until entering the crane training business in 1984.
As President of Crane Institute of America, Jim has developed training programs for hundreds of major companies including aircraft manufacturers, oil and gas producers, utilities, and the military. For over 20 years, he served on U.S. standards boards–ASME B30 main committee on cranes and lifting devices, and sub-committees for cranes, slings, and rigging hardware. Presently he serves on the International Standards Organization (ISO) committee on cranes.
Headley is also...
Something went terribly wrong while three cranes were moving the bow section of a ship in a Mississippi shipyard. One crane overturned and several workers injured.
Cranes are designed to smoothly lift and move loads within their capacity with the boom tip directly over the center of gravity of the crane’s load. When multiple cranes are working together, they share the load, but neither have the load positioned over the center of gravity.
As you can imagine, things become more complicated when three cranes are working in tandem, because the movement of a load has to be perfectly choreographed. In this case, the only safe maneuvers made would be to hoist, lower and travel. Hoisting and lowering shouldn’t be a problem as long as each crane’s share of the load is within its capacity. However, traveling induces dynamic forces on the cranes because they don’t travel in perfect synchronization. Like all equipment, cranes travel at random speeds no matter how careful the operators are to synchronize their speed. Being off by a small amount causes what could best be described as a pushing and shoving match between the cranes.
Industry accepted lift planning models for multiple crane lifts would require that no crane be loaded beyond 75% of capacity. This 25% safety margin is used to compensate for the dynamic forces.
Attend our Mobile Crane Operator training to learn safe operating practices.
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